imported>Ohtashinichiro：Cat-a-lot：分类间移动：从Category:凌日系外行星到Category:凌星现象

2026-05-07T06:51:31Z

Cat-a-lot：分类间移动：从Category:凌日系外行星到Category:凌星现象

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{{Planetbox begin
| name = WASP-4b
}}
{{Planetbox image
| image = Exoplanet Comparison WASP-4 b.png
| caption = WASP-4b和木星大小的比較
}}

{{Planetbox star
| star = [[WASP-4]]
| constell = [[鳳凰座]]
| ra = {{RA|23|34|15.06}}<ref name=sb>{{SIMBAD link|WASP+4|WASP-4}}, entry, [[SIMBAD]]. Accessed on line June 19, 2008.</ref>
| dec = {{DEC|−42|03|41.1}}<ref name=sb />
| app_mag = 12.5<ref name=wasp />
| dist_ly = 1000 ± 160
| dist_pc = 300 ± 50<ref name=wasp />
| class = G7V<ref name=wasp>[http://www.iop.org/EJ/article/1538-4357/675/2/L113/22429.html WASP-4b: A 12th Magnitude Transiting Hot Jupiter in the Southern Hemisphere], D. M. Wilson et al., ''Astrophysical Journal Letters'' '''675''', #2 (March 2008), pp. L113–L116. {{Bibcode|2008ApJ...675L.113W}}. {{doi|10.1086/586735}}.</ref>
}}
{{Planetbox orbit
| semimajor = 0.02255{{±|0.00095|0.00065}}<ref name=wasp2>Table 3, Improved parameters for the transiting hot Jupiters WASP-4b and WASP-5b, M. Gillon et al., ''Astronomy and Astrophysics'' '''496''', #1 (2009), pp. 259–267, {{doi|10.1051/0004-6361:200810929}}, {{Bibcode|2009A&A...496..259G}}.</ref>
| eccentricity = 0.0<ref name=wasp2 />
| period = 1.3382324{{±|0.0000017|0.0000029}}<ref name=wasp2 />
| inclination = 89.35{{±|0.64|0.49}}<ref name=wasp2 />
| t_transit_no_jd = 2454383.313070{{±|0.000045|0.000074}} [[Heliocentric Julian Date|HJD]]<ref name=wasp2 />
| semi-amp = 247.6{{±|13.9|6.8}}<ref name=wasp2 />
}}
{{Planetbox character
| radius = 1.304{{±|0.054|0.042}}<ref name=wasp2 />
| mass = 1.21{{±|0.13|0.08}}<ref name=wasp2 />
| temperature = 1650 ± 30<ref name=wasp2 />
}}
{{Planetbox discovery
| discovery_date = October 31, 2007<ref name=pr>[http://www.superwasp.org/press_release2/WASP2007_national_pressV5.pdf UK planet hunters announce three new finds] {{Wayback|url=http://www.superwasp.org/press_release2/WASP2007_national_pressV5.pdf |date=20100612233157 }}, press release, WASP project. Accessed on line June 19, 2008.</ref>
| discoverers = Wilson ''et al.'' ([[SuperWASP]])
| discovery_method = [[系外行星偵測法#凌日法|凌日法]]
| discovery_site = [[SAAO]]
| discovery_status = Published
}}
{{Planetbox reference
| star = WASP-4
| planet = b
}}
{{Planetbox end}}

'''WASP-4b'''是位於[[鳳凰座]]，距離大約1,000光年的一顆[[系外行星]]<ref name=wasp />，這顆環繞著[[WASP-4]]的行星是在2007年10月發現的。這顆行星的質量和半徑顯示它是類似[[木星]]的[[氣體巨星]] <ref name=pr />。WASP-4b非常靠近母恆星，因此歸類為[[熱木星]]，使得大氣層的溫度大約是1650[[熱力學溫標|K]]<ref name=wasp /><ref name=wasp2 />。

[[Image:WASP-4 b rv.pdf|thumb|left|275px|存在的行星WASP-4 b造成WASP-4的徑向速度變化趨勢。]]

這顆行星是使用[[SuperWASP]]專案的照相機在[[南非]]發現的<ref name=pr />。在發現之後，使用WASP-4的徑向速度測量出WASP-4b的質量，並且經由凌日法確認這是一顆行星。

== 參考資料 ==

{{reflist}}

==相關條目==
* [[超廣角尋找行星|SuperWASP]]
* [[WASP-4]]

== 外部鍊結 ==
{{commonscat-inline|WASP-4 b|WASP-4b}}
* {{cite web |url=http://www.superwasp.org/ |title=SuperWASP Homepage |accessdate=2008-07-02 |work= |publisher= |date= |archive-date=2011-01-31 |archive-url=https://web.archive.org/web/20110131025228/http://www.superwasp.org/ |dead-url=yes }}
* {{cite web |url=http://www.superwasp.org/press_release2/WASP2007_national_pressV5.pdf |format=PDF |title=UK planet hunters announce three new finds |accessdate=2008-07-02 |work= |publisher= |date=2007-10-30 |archive-date=2010-06-12 |archive-url=https://web.archive.org/web/20100612233157/http://superwasp.org/press_release2/WASP2007_national_pressV5.pdf |dead-url=yes }}

{{Sky|23|34|15.06|-|42|03|41.1|1000}}

[[Category:太陽系外行星]]
[[Category:2007年發現的系外行星]]
[[Category:类木行星]]
[[Category:熱木星]]
[[Category:凌星现象]]
[[Category:鳳凰座]]

WASP-4b - 版本历史

imported>Ohtashinichiro：​Cat-a-lot：分类间移动：从Category:凌日系外行星到Category:凌星现象

imported>Ohtashinichiro：Cat-a-lot：分类间移动：从Category:凌日系外行星到Category:凌星现象